我正在使用安装了Python 2.7的Win8.1 64位计算机。我已经安装了swigwin 3.0.5。当我做“pip install M2Crypto”时，我收到了以下错误：
SWIG\_m2crypto.i(30) : Error: Unable to find 'openssl\opensslv.h'
SWIG\_m2crypto.i(33) : Error: Unable to find 'openssl\safestack.h'
SWIG\_evp.i(12) : Error: Unable to find 'openssl\opensslconf.h'
SWIG\_ec.i(7) : Error: Unable to find 'openssl\o,pensslconf.h'
在某些链接中，我发现建议安装openssl-dev。但我找不到Windows的等效包（pip install openssl-dev不起作用，我已经完成了pip install pyOpenSSL，这对我没用）。
提前致谢。
答案 0 :(得分：0)
在Windows上安装M2Crypto很痛苦。幸运的是，有些人已经开始为M2Crypto创建Windows安装程序：
您也可以直接从M2Crypto的制造商那里使用稍微较旧版本的软件包，因为他们实际上提供了一段时间的Windows可安装版本：
这也是一个有用的链接：
答案 1 :(得分：0)
我通过以下方式解决了问题（在Windows上的MiniConda安装中）：
它也可能适用于其他Python环境。
但是，我遇到了更多问题（我不知道如何解决）：
building 'M2Crypto.__m2crypto' extension
swigging SWIG/_m2crypto.i to SWIG/_m2crypto_wrap.c
C:\Program Files\MiniConda3\envs\python2\Library\bin\swig.exe -python "-IC:\Program Files\MiniConda3\envs\python2\include" "-IC:\Program Files\MiniConda3\envs\python2\PC" -Ic:\pkg\include -include
all -modern -builtin -outdir build\lib.win-amd64-2.7\M2Crypto -o SWIG/_m2crypto_wrap.c SWIG/_m2crypto.i
SWIG\_bio.i(64) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_rand.i(23) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_evp.i(180) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_dh.i(36) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_rsa.i(43) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_dsa.i(31) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_ssl.i(241) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_ssl.i(242) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_x509.i(332) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_pkcs7.i(44) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_pkcs7.i(44) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_util.i(11) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_ec.i(111) : Warning 454: Setting a pointer/reference variable may leak memory.
SWIG\_engine.i(168) : Warning 454: Setting a pointer/reference variable may leak memory.
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "c:\users\pal\appdata\local\temp\pip-build-reeqlh\M2Crypto\setup.py", line 280, in <module>
'clean': Clean
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\core.py", line 151, in setup
dist.run_commands()
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\dist.py", line 953, in run_commands
self.run_command(cmd)
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "C:\Program Files\MiniConda3\envs\python2\lib\site-packages\setuptools\command\install.py", line 53, in run
return _install.run(self)
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\command\install.py", line 563, in run
self.run_command('build')
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\command\build.py", line 127, in run
self.run_command(cmd_name)
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "c:\users\pal\appdata\local\temp\pip-build-reeqlh\M2Crypto\setup.py", line 148, in run
build_ext.build_ext.run(self)
File "C:\Program Files\MiniConda3\envs\python2\lib\site-packages\setuptools\command\build_ext.py", line 46, in run
_build_ext.run(self)
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\command\build_ext.py", line 339, in run
self.build_extensions()
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\command\build_ext.py", line 448, in build_extensions
self.build_extension(ext)
File "C:\Program Files\MiniConda3\envs\python2\lib\site-packages\setuptools\command\build_ext.py", line 182, in build_extension
_build_ext.build_extension(self,ext)
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\command\build_ext.py", line 498, in build_extension
depends=ext.depends)
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\msvc9compiler.py", line 473, in compile
self.initialize()
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\msvc9compiler.py", line 383, in initialize
vc_env = query_vcvarsall(VERSION, plat_spec)
File "C:\Program Files\MiniConda3\envs\python2\lib\distutils\msvc9compiler.py", line 299, in query_vcvarsall
raise ValueError(str(list(result.keys())))
ValueError: [u'path']
----------------------------------------
Command ""C:\Program Files\MiniConda3\envs\python2\python.exe" -u -c "import setuptools, tokenize;__file__='c:\\users\\pal\\appdata\\local\\temp\\pip-build-reeqlh\\M2Crypto\\setup.py';exec(compile(get
attr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record c:\users\pal\appdata\local\temp\pip-opk8he-record\install-record.txt --single-version-external
ly-managed --compile" failed with error code 1 in c:\users\pal\appdata\local\temp\pip-build-reeqlh\M2Crypto\